Milk Supply and What Affects it

January 5, 2026
Family with kids

One of the most common worries new parents have is: “Will I have enough milk?” Let’s break it down in a simple, reassuring way.

How Milk Supply Works

Your body is amazing! Milk production works on a supply-and-demand system. The more your baby nurses (or you pump), the more milk your body makes. This means frequent feeding is the key to building and maintaining supply.

For the first few days after birth, your baby will drink colostrum, a small amount of nutrient-dense milk. Don’t worry if it seems tiny as newborn stomachs are tiny too! By day 3–5, your “mature” milk usually comes in, and your baby’s appetite will naturally increase. Your breasts may look like you recently got breast implants!

Signs Your Baby Is Getting Enough Milk

It can be stressful to wonder if your baby is feeding well. Here are some simple signs that your milk supply is on track:

  • Based on your baby's age is the number of wet diapers you'll want to see each day (1 day old, minimum 1 wet diaper... 5 days old, minimum 5 wet diapers.
  • Your baby has, at minimum, 6 wet diapers daily after the first week.
  • Your baby has regular bowel movements (color and frequency can vary).
  • Your baby seems content after most feedings, not constantly fussy.
  • Your baby is gaining weight steadily after the first few days.

If you notice persistent issues, your local lactation consultant can help!

Things That Can Affect Milk Supply

Several factors can influence how much milk you produce:

  1. Feeding frequency : less frequent feeding can slow milk production.
  2. Latch and positioning: if your baby isn’t latching properly, they may not get enough milk, and your body may not be stimulated enough to produce more.
  3. Maternal health: certain health conditions, medications, stress, or lack of sleep can affect supply.
  4. Hydration and nutrition: eating a balanced diet and staying hydrated supports milk production, though you don’t need to “drink gallons of water” or eat special foods to make milk.
  5. Supplementing too early without subsequent stimulation at the breasts: formula supplementation can reduce the frequency of breastfeeding, which may temporarily lower supply.

Tips to Boost Milk Supply

  • Feed on demand – Watch for hunger cues like rooting, sucking on hands, or fussiness.
  • Check the latch – Make sure your baby’s mouth covers most of the areola, not just the nipple.
  • Pump if needed – Extra pumping sessions between feedings can stimulate more milk production.
  • Take care of yourself – Rest, hydration, and nutrition help your body work at its best.
  • Ask for help – A certified lactation consultant can offer personalized guidance.

The Takeaway

Most new parents produce enough milk for their babies. Milk supply is a dynamic process, and it usually adjusts to meet your baby’s needs. Trust your body, pay attention to your baby’s cues, and reach out for support if you’re concerned. Breastfeeding may have a learning curve, but with patience and support, it usually works out just fine.

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